Geokge i



G. L. BIDWELL.

HARD STOCK WHIPPER.

APPLICATION FILED MR. 1, 1920.

PatentedSept. 14, 1920.

INVENTOR.

WITNESS:

A TTORNE Y.

45 hl is s ple in on t ptibnm w e:

UNITED mu GEORGE L. BInwELn- OF RIEGELSVILQE,PENNSYLVANIA.

ARD-school: wnrrrnia.

T amm m amm, V

Be it known that I, GEORGE'L. BIDWELL, a1

' citizen of theUnitedStates of America, re:

sidin at Riegelsville, in the county of Bucks and tate of Pennsylvania, have inventedai new and -'useful 'Ha'rd-Stock .Whipper, of

Whichthejfollowingis' a specification.

'My invention relates to improvementsin devices o'r'iapplian'cesdesigned for remov-' ing the dust an'd dirtlfrom what is-known as j lthard; 1 0 regs, b rl a, gunnyfrope, hemp,jute, and sisal, used in able, all as hereinafter set forth.

This whipper is designed especially for the manufacture of paperior' of pulp from which paper is made, and'consists of an end-j less carrier for the stock,and one ormore baffles and adjacentlyrlooated rotary, winged paddles, ,all suitably inclosed, together with such other parts. and members as may be necessary or desirable'in order to render the applianceor whipp'er complete and serviceuse in connection with my new process of making pulp for paper, for which I have filed an'application for Letters Patent of the United States on even date herewith, Serial One object of my inven'tion is to afford means for removing the foreign substance or amount of waste. .Machi'nesjof this charmatter from hardstock with "the minimum acter in the past have removed 'with'the .Q I ous motion appliance of this character, so

foreign matter ,mueh valuable lint, even as high as 8% in "weight of the original stock being lost by such machines in not infr e quent cases. IWith machine orappliance the waste is v almost negligible, whereforesaid appliance is economical in the handling ofthe stock.

Anotherobject is to produce. a oontinuthat a the cleaning 1 operation can proceed without interru'ptingto the "end that an im; portant' saving in time is efliected.

A further bject is ,to' r vid a whipp er" tion, and comparatively inexpensive a'szwell,

so that another saving in enpenseis expert Other objects landiadvanta'ges will appear.

' the course ofthe'follow-ing' description-1.

I attain the obj ects and secure the vantages of my invention by the mechanism illustrated in; the afccompanying'drawings,

w 1 Application filed March 1 1920; Serial at. 362,326?

Figurel is a top "plan of a whipper v I embod es a practical form of my invention,

Specification of Letters Patent ie the inclosure or whipper-house'being in sec?" tion, thus showing the mechanism within the same in full; ig. 2, a side elevation of said whipper, the near side of said whipperhouse being removedfand, Fig. 3, afjoross section through said whipper,'taken gnlih 3 3, looking in the direction of the" assothe whipper-house in ciated arrow, in Fig,;2.

Thets'ection through the first view is taken on lin'es l 'l, in Fig;

2;"1 ortions'of the whipper arebro'kenout i i v gs-l 1 nd 2 in order toeconomize' space.

Similar reference; numerals" designate V The whipper' mechanism is inclosed in a whipper-house 2 of-an'y suitable construc tion. This whipp'erfhouse supports the op erated mechanism and' associated elements of the machine, and confinesthedustpro 70, i similar-[parts throughout the several views,

a raised portion 5-ofthewhipper-house, it

being to saidvfiue that the suction is applied which removes 'the dustjfrom said house. .The rightbandend of the whipper vas it stands in the drawings isthe :front end, and i there is an-o'pe'ning 6 in the whipper-house atsuch end. Agninclined table .7 extends into the opening '6 ,Thjehard stock to be 7 whipped "is placed on or discharged onto the table Tjandslides downthe same onto an endlessfapron 8. 'In 'the opposite or rear end of the whipper-house nearjthe bottomis an the penin ,4 r The apron 8 is supported on two rollers 10 having shafts Hand 12 which areijournaledfin'the'sides of the' whipper-house.

Therollers' wand the apron 8 are driven by; a pulley 13 secured on"therear term1nal of thejshaft 11, which terminal extends be yond ithe backside of the whipper-house,'

andby a belt (not shown) applied to said pulleyi The upper'reachf of: the apron 8 travels iniithe direction indicated' by the as- T" sociated arrow in Fig. 2;" The table 7 dis-s ihar'g 'ont the ap n di e t ih fr o l r-1 i :1 1 A s atted, e 'e J 'iS-SI PPQrWl-Pn l r 1 5 whioh are mounted on shafts 16 16 that are journaled in the sides of thewhi'p per-house 2 belOWQthQfllOl'lZOlltklliPltllltl or the shafts 11 and. 12, the arrangement be ingsuoh that said apron extendsbe'neath said-roller 12 and the apron 8 at the rear end, Thus-it is seen that the apron Sis located in the forward part of the ,whipperhouse and the apron 14 in the rearward/ part of 'said,house. A slotted. drawhoard 17 is lfsupportedbn the apron let and is O'fsuch length, when" in proper position on said:

apron,'as to extend beneath the rear end of the apron 8. The drawboard 17 can be withdrawn from the whipper house' The above-mentioned apron and draw board are-01d and well-known in the art,

Rigidly attached toxthesides of the whipper-house inside ..are t'wo'transverse, vertical members 18 which are termed baiHes. These are, arranged one behind the other overthe, apron 8.

Behin I isjournaled inthe sides of the whippe'rhouse and'fproj'cts beyond the backside thereof. Securely mounted on each shaft19 within the. whipper-house is a paddle 20,

and securely mounted on the terminal of such shaft which protrudes from said house behind is a pulley 21. The two pulleys 2 1 are driven by belts (notshown), and in turn drive the shafts T19 and the paddles "20, the

7 direction of rotation being indicated by the associated arrows in Fig.2. The, paddles 20 consist merely of a pair of hubs mounted'on one ofthe shafts 1'9. and having oppo- L sitely-disposed, downwardly-extending arms 7 connected at their outer endsbywing pieces 22-22, the latter'preferably being on the front, in the direction of rotation, of said 7 1 arms, as shown ingthedrawings. Thepad apron, or in position to sweep portionszof stock from said apron and throwfit: against dles 20, like the baffles 18, are over or above: the apron 8,'and said. paddles arein operative position relative to both said bafiies and said bafiles. The paddles 20Iare revo1ved rapidly so that they throw the stock: against the baffles 18 with great force. I q

- Inpractice, after the drawboard 17 isrrun in on the. apron 1 1 until the forward endof said drawboardisbeneath the rear-end portionsof the apron 8, power is applied to the pulleys 13 and 21 and the 'apron 8. and paddles .20 are set in motion. Stock is now fed tothe. apron 8Ylfrom the. table 7, and as said stock is carried under the rapidlyrevolving paddles 20thelatter catch up portions of the same and dash said portions violentlyagainst the baffles :18. The. apron,

8. travels slowly. so that usually the. two paddles arefable to throw against. the. bafiles all the stook-that is fed to. said apron, and each paddle even is able to'ha'ndle all of said and replaced therein through the opening 9.v

d each baffle 18 a shaft 19 which stock, with theres ult that the stock issubl/Vhen the stock strikes thebaffles some of "said stock falls down in front of said baffles directly on to the apron 8 below, and some of it is carried over and around with the paddles to be dashed against said baffles again. Thus'it'is seen that the stock receives a very thorough whipping by 'the time it arrivesat the rear. end ofthe apron 8. From the, rear end of the apron 8 the-stock falls jected twice to the whipping action of the machine... 7 7

onto the drawboard 17 The stock continues 7 to accumulate on the drawboa'rd until the latter is full, when it is drawn out through. the opening 9 and its oontentsis dumped,

intoa suitable receptacleor receiver, after which 'the drawboard is returnedto placefonthe apron 14 and with the forward end or;

the drawboard beneath the-reari'e'nd portions, of the apron '8. The movablechara'camfj the apron 1 1 'facilitatesthe operation or mar nipulationofthe drawboard in' ,the' manneri described.

During the operation of thewhippenthe;

lighter' "portions of the I foreign matter shaken or, whipped out of the stock are drawn out through the flue 4, while the heavier particles of such matter pass through the'slots in the dra-wboard'l'i and the openings inthe slatted apronlt to the floor of the whippe'r-house 2.

In the event one passage through-the whipper be not suflicient to eliminate the a dust. or foreign matter fromthe'stook, the latter can be run through the Whipper a second time, or as many times asmay be de sired.

' Obviouslythe number of bailies. pad 7 dles may vary. I v V The action on the stock when thrown against the-'bafiies by'the paddles, is of.-.a

nature to shake out of such stock theforeign a matter therein, without a; suflicient {degree relation to said conveye'r, and a .bafiieabove said oonveyer an'dbeh in'd and extending be.- low' the horizontal, plane :ofthe axis of said paddle.

ii'o I its 2. Thecombination, a hal d -stook whi p per, with a whipper-house, .anapron in} sald house,- and means to ;drive.;sai'd1 apron, of a rotary paddle in said house .above .said apron,.and.a fixed bafile in said; housebehind said paddle and, extending below :thelflhorizontal plane'of'the axis thereofj f 3. The combination, in a hard-stock i w hipper, witha Whipper-house, an apron, in said house, means to drive said apron, a per forated apron mounted 'to [travel in "said house, and aslotted drawboard receivable on said last-mentioned apron, the arrangement being such that said drawboard can be pushed forward beneath said first-named apron at the rear end of the latter, of a rotary paddle in said house above said first named apron, and a baflle in said house be-I said shaft above "said conveyer said paddle consisting of hubs with oppositely-ex 15 tending arnis,-'and, wing pieces connecting said arms at their outer terminals, open spaces being left between said shaft andsaidwing pieces; and a baffle behind said paddle, parallel with the axis of the latter, -20' and approximately perpendicular to the main course of said apron, said baffle extending below thehorizontal' plane of said axis; I

'GEQRGEL. BIDWELL. I Witnesses I s i HE nY W. GRIFFIN, I WARREN M. BROTZMAN. 

